https://bugzilla.kernel.org/show_bug.cgi?id=23412 --- Comment #4 from Thomas Renninger <trenn@xxxxxxx> 2010-12-17 14:09:35 --- This is because previous kernels did not read out the BIOS limit at processor.ko load time which was wrong and got fixed. The reason why the BIOS limits freq can be totally different, e.g. here: https://bugzilla.kernel.org/show_bug.cgi?id=16362 It gets limited on ThinkPads if you work with a 65 Watts AC adapter without battery. Or you might want to read the last comments of vyncere in this bug (the bug is about something else, but that was not clear at the beginning): https://bugzilla.kernel.org/show_bug.cgi?id=19702 ------------------- Thank you very much Thomas for your hint. As you suggested me to check the BIOS limit (which was 1.20 GHz in my case), this morning I set in my BIOS for all modes (AC/DC Power + Battery) the "Performance" profile, instead of "Power-saving" one. Now the BIOS limit is 2.40GHz, and cpufreq manage to do his job, without any patches (2.6.36). ------------------- I looked at quite some "Bios limits my frequency" bugs and the kernel always behaved correct. If your ACPI tables are not busted (and you should see this by some obvious ACPI Error messages in dmesg), I suggest you look up your BIOS setting, your mainboard manual or update the BIOS if it does not help. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
